Space shuttle launch delayed again for valve tests
Washington (AP) — NASA has delayed the next space shuttle launch again.
Now the space shuttle Discovery won't lift off before Feb. 22. NASA says it needs the extra time to finish testing hydrogen gas fuel valves. A small part of one valve broke during the launch of the last shuttle flight in November.
On Tuesday, NASA postponed the launch of Discovery from Feb. 12 until at least Feb. 19.
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NASA spokesman Kyle Herring said engineers are still conducting tests, which are taking longer than expected. The worry is that if the valve tip came off, it could damage part of the shuttle.
Discovery and its seven-man crew are set to deliver the last set of solar wings to the international space station.